Ultracold atom systems provide an ideal platform to study many
interesting physics in condensed matters. To investigate the
effects of gauge fields with ultracold atoms, several schemes have
been proposed to create an artificial Abelian gauge field
[1]}, [2]}, [3]}, [4]}, [5]}, [6]} or a
non-Abelian gauge field [7]}, [8]}, [9]} for neutral
atoms with laser fields. Many effects have been studied for cold
atoms in an effective gauge field, e.g., Stern-Gerlach effect for
chiral molecules[10]}, Double and negative
reflection[11]}, Landau levels[12]}, spin Hall
effect [13]}, [14]}, induced spin-orbit coupling[15]},
magnetic monopole[16]}, spin field effect
transistors[17]}. Furthermore, some groups have realized
the light-induced gauge fields in experiments[18]}, [19]}.
